Battery Module Reinforcing Plate Structural Integrity
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Solution Overview
Problem
High-power battery modules face challenges in maintaining safety and preventing deformation due to external impacts, while also requiring variable shapes to accommodate diverse device designs.
Innovation Solution
A battery module design featuring a housing portion with a reinforcing plate between battery cells, coupled to side plates through welding or mechanical groove-protrusion coupling, and an insulative coating to prevent short-circuiting, using materials like iron or stainless steel to reduce weight and enhance structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the housing portion is made thicker or more robust to prevent deformation from external impacts, then safety and structural integrity are improved, but weight increases
Solution Approach 1:
The housing portion uses composite material construction by combining metal plates (for structural strength) with polymer materials (for lightweight properties). Specifically, the side plates, end plates, bottom plate, and reinforcing plate are made of metal, while the housing cover is made of polymer, creating a composite structure that achieves both lightweight and high-strength characteristics
Solution Approach 2:
The housing portion is divided into multiple segmented components including side plates, end plates, bottom plate, reinforcing plate, and housing cover. These segmented parts are connected through fastening members, allowing each component to be optimized independently for weight and strength while maintaining overall structural integrity
2Weight of moving object
If the housing portion structure is simplified to reduce weight, then weight is reduced, but resistance to external impact and deformation prevention deteriorates
Solution Approach 1:
The housing portion uses composite material construction by combining metal plates (for structural strength) with polymer materials (for lightweight properties). Specifically, the side plates, end plates, bottom plate, and reinforcing plate are made of metal, while the housing cover is made of polymer, creating a composite structure that achieves both lightweight and high-strength characteristics
Solution Approach 2:
The reinforcing plate is pre-installed on the outer surface of the battery cells before the housing cover is attached. This preliminary placement of the reinforcing plate ensures that the load-bearing structure is already in position to resist external impacts before the final housing assembly is completed
3Reliability
If battery cells are arranged in fixed configurations to ensure safety, then safety is improved, but adaptability to different device shapes and designs deteriorates
Solution Approach 1:
The housing portion is divided into multiple segmented components including side plates, end plates, bottom plate, reinforcing plate, and housing cover. These segmented parts are connected through fastening members, allowing each component to be optimized independently for weight and strength while maintaining overall structural integrity
Solution Approach 2:
The housing portion uses detachable connections with fastening members that allow the housing components to be assembled and disassembled. This dynamic assembly structure enables the battery module housing to be adapted to different device shapes and designs while maintaining safety through the standardized reinforcing plate structure
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively strengthens the battery module, preventing deformation from external impacts and ensuring safety while allowing for lightweight construction and variable shapes to meet diverse application needs.
Implementation Method 1
The reinforcing plate may be welded to the side plates.
Implementation Method 2
An insulative coating layer may be formed on at least one surface of the reinforcing plate.
Data Source
AI summary
A battery module includes a plurality of battery cells arranged in a same direction and a same orientation; and a housing portion disposed on the outer surfaces of the plurality of battery cells. In the battery module, the housing portion includes a reinforcing plate positioned between at least two of the battery cells. The reinforcing plate is part of the housing portion, and strengthens the housing portion, thereby enabling a lighter weight battery module and improving the safety of the battery module.